Chlorine is in +1 oxidation state in which of the following
Chlorine is in +1 oxidation state in which of the following
Options
(a) HCl (b) Cl₂O (c) HClO₄ (d) Cl₂
Correct Answer:
Cl₂O
Explanation:
Let x be the oxidation number of Cl […]
Chemistry
Which is weakest acid
Which is weakest acid
Options
(a) HI (b) HBr (c) HCl (d) HF
Correct Answer:
HF
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting […]
Urea is preferred to ammonium sulphate as a nitrogeneous fertilizer because
Urea is preferred to ammonium sulphate as a nitrogeneous fertilizer because
Options
(a) it is more soluble in water (b) it is cheaper than ammonium sulphate (c) it is quite stable (d) it […]
Which of the following statements is correct
Which of the following statements is correct
Options
(a) All halogens except fluorine form oxy acid (b) All halogens form oxy acid (c) Only chlorine and bromine form oxy acid (d) Only iodine […]
Cassiterite is concentrated by
Cassiterite is concentrated by
Options
(a) flustation (b) liquation (c) levigation (d) electromagnetic separation
Correct Answer:
Electromagnetic Separation
Explanation:
Cassiterite is a tin stone(SnO2) which consists of non-magnetic & contains wolframite, magnetic impurities (FeWO4). […]
Carborundum is
Carborundum is
Options
(a) Al₂(SO₄)₃ (b) AlCl₃ (c) Al₂O₃2H₂O (d) SiC
Correct Answer:
SiC
Explanation:
Silicon carbide (SiC), also known as carborundum is a compound of silicon and carbon with chemical formula SiC. […]
Which one of the following is not a sulphide ore
Which one of the following is not a sulphide ore
Options
(a) Magnetic (b) Iron pyrites (c) Galena (d) Sphalerite
Correct Answer:
Galena
Explanation:
No explanation available. Be the first to write the […]
Among the metals Cr,Fe,Mn,Ti,Ba and Mg, the one that cannot be obtained by
Among the metals Cr,Fe,Mn,Ti,Ba and Mg, the one that cannot be obtained by reduction of its metal oxide by aluminium is
Options
(a) Cr (b) Fe (c) Mg (d) Ba
Correct Answer:
Mg
Explanation: […]
Thomas slag is
Thomas slag is
Options
(a) CaSiO₃ (b) Ca₃(PO₄)₂ (c) MnSiO₃ (d) CaCO₃
Correct Answer:
Ca₃(PO₄)₂
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Bauxite is concentrated by
Bauxite is concentrated by
Options
(a) magnetic separation (b) roasting (c) froth floatation process (d) chemical method
Correct Answer:
chemical method
Explanation:
Bauxite (Al₂O₃.2H₂O) is concentrated by chemical method. In this method bauxite […]